I agree with @Shelby Ohyama. However, you need to be a little careful with dates in Apptio, and how you do comparisons. If you do the above, but convert them to labels, then oyu will be OK. However if they are formatted as Dates, oyu may get unexpected results.
For example, the following code tests if a Date is greater than the current fiscal year. Note you need to use the days operator to do that comparison.
PO date is a Date column in the source data
current year=Right(DateFormat(CurrentDate(),"ffff"),4)
valid year=If(days(PO Date)>=days(Start of Year),"Yes","No")
For you example you could use the following formulae, but make sure they the columns are set as Labels and not Dates, so that you are just doing a string comparison
Current Month = DateFormat(CurrentDate(),"ddMMM")
Comparison Date = DateFormat (DateinYourData,"ddMMM")
In Current Month =IF(Curent Month=Comparison Date,1,0)